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Serum or Plasma Protein Electrophoresis (Qualitative)

Published: August 9, 2026Updated: August 16, 2026

This test measures the distribution of different protein types in your blood, often used to identify unusual protein patterns that may signal conditions like multiple myeloma, liver disease, or other disorders affecting protein production.

Quick summary

["Helps detect abnormal protein levels that may indicate serious health conditions."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
71499-8
Short code
OWNER
Synonyms
—
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
esrd
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

Electrophoresis separates blood proteins (such as albumin, globulins, and other fractions) based on size and charge. The test identifies whether any proteins appear in unexpected amounts or forms, which can reveal underlying health issues.

Why It’s Ordered

Your healthcare provider may request this test if you have symptoms like unexplained weight loss, fatigue, swollen lymph nodes, or signs of organ dysfunction. It’s also used as part of screening for conditions like amyloidosis or chronic kidney disease.

Sample Preparation

A blood sample is drawn, and the serum or plasma is prepared for analysis. No special preparation is needed, but fasting may be advised depending on your provider’s instructions.

What to Expect

The test involves a small blood draw, typically taken from your arm. The results are qualitative, meaning they describe patterns rather than specific numeric values.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Qualitative Protein Electrophoresis

Frequently asked questions

What does a ‘qualitative’ result mean?
A qualitative result describes whether certain protein patterns are present or absent, not their exact amounts. For example, it may show ‘abnormal bands’ or ‘missing proteins’ rather than precise measurements.
How long does it take to get results?
Results are usually available within 1–3 business days, depending on lab processing times. Follow up with your provider if you have questions about the findings.
Can I eat or drink before this test?
Check with your provider first, as fasting may be required for some patients. Generally, no special diet is needed unless instructed otherwise.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy